Improvement in attaching harvester cutter-blades to the sickle-bar



w. H. HOVEY. Attaching Cutters to Harvesters.

No. 14,768. Patented April 29, 1856'.

I E l I i u PETERS. Phalollthngnplwr. Wzshmglon. n c.

UNITED STATES PATENT OFFICE.

WM. H. HOVEY, OF SPRINGFIELD, MASSACHUSETTS.-

Specification forming part of Letters Patent No. 14,768., dated April 29, 1856.

4 field, in the county of Hampden and State of Massachusetts, have invented anew and Improved Mode of Attaching the Teeth of the Sickles of Reapers to the Sickle-Bar; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawings, making a part of this specification, in which- Figure l is a plan or top view of a portion of the sickle of a reaper. Fig. 2 is a transverse section of the same, :v m, Fig. 1, showing the plane of section. Fig. 3 is a longitudinal section of the same, 3 3 Fig. 1, showing the plane of section.

Similar letters of reference indicate corresponding parts in the several figures.

My invention consists in attaching the teeth of the sickle to the sickle-bar by means of pins, which are attached to the sicklebar, and a slide through which the pins pass, the above parts being arranged as will be present] y shown and described.

To enable those skilled in the art to fully understand and construct my invention, I will proceed to describe it.

A represents a portion of a sickle-bar, and a represents pins, which are attached to said bar at equal distances apart and in line with each other, the pins extending the whole length of the bar and attached to it at about its center. The pins a may be screwed into the bar, or'they may be secured to it by riveting their lower ends on the under side of the bar. The pins a have grooves 12 out in them, said grooves extending entirely around them, as shown clearly in Figs. 2 and 3. The spaces between the pins a, from center to center, are equal to the width of the inner ends or, widest part of the sickle-teeth. 1

B represents the sickle-teeth, which are of triangular or saw-tooth form, as plainly shown in Fig. 1, and semicircular recesses c are made in each side of the back parts of the teeth, so

that the teeth may be fitted between the pins, and when thus fitted the inner or back ends of the teeth be in contact, as plainly shown in Fig. 1.

To the sickle-bar A, on its upper surface, there is attached a longitudinal bar, 0, against the front edge of which the back ends or edges of the teeth B bear.

D represents a plate, which has holes d made through it at equal distances apart, corresponding with the distances between the pins a. The holes din the plate have a slot, 0, adjoining them, the width of the slots being equal to the diameter of the pins a at points in line with the grooves I). (See dotted lines in Fig. 1.) The plate D is fitted upon or over the teeth B by allowing the pins or to pass through the holes d, and then shoving theplateD laterally till the pins a are in the slots 6, the portions of the pins above and below the grooves b projecting over the edges of the slots 6. The pins a and the bar 0 prevent the teeth B from moving or Working laterally, and the plate D, when secured upon the teeth, as shown, prevent any vertical play or vibration of the teeth. The teeth, consequently, are firmly secured to the sickle-bar, and may be readily attached to and detached from it; and in case a tooth is broken, or in case they require to be ground, they may be detached from the sickle-bar and attached to it by a farmer or laborer without the aid of a mechanic.

Having thus described my invention, what 1 claim as new, and desire to secure by Letters Patent, is-

Attaohing the teeth B to the sickle-bar A by means of the grooved pinsaand bar 0, attached to the bar A, and the plate D, having holes (1 and slots 0 made through it, substantially as herein shown and described.

WM. H. HOVEY.

Witnesses:

GEO. S. HASKELL, A. L. SoULE. 

